Nucleic acids - DNA/RNA Flashcards

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1
Q

What is DNA used for?

A

to store genetic information

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2
Q

What is RNA used for?

A

to transfer genetic information from DNA to ribosomes

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3
Q

What is a nucleotide made from?

A

a pentose sugar
a nitrogen containing compound
a phosphate group

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4
Q

What sugar is in DNA?

A

deoxyribose sugar

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5
Q

what are the four bases in DNA

A

Adenine, guanine, cytosine and thymine

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6
Q

what sugar is in RNA?

A

ribose sugar

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7
Q

what base does RNA have instead of Thymine

A

uracil

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8
Q

what is a polynucleotide and how is it formed

A
  • a polymer of nucleotides and they are formed via a condensation reaction
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9
Q

what bond forms between nucleotidea?

A

phosphodiester bond

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10
Q

why did scientist doubt that DNA could carry the genetic code?

A

it has a relatively simple chemical composition

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